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Chapter 2
Study Guide
12
Science
7th Grade
09/24/2012

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Cards

Term
Osmosis
Definition
Diffusion of water through a membrane
Term
Fermentation
Definition
Process by which cells release energy without oxygen
Term
Active Transport
Definition
Movement of materials that does not use the cell's energy
Term
Diffusion
Definition
process by which molecules spread out from many to few
Term
Chemical Energy
Definition
energy stored in bonds between atoms of every molecule
Term
Glucose
Definition
major energy source for most cells is stored in a sugar molecule
Term
Endocytosis
Definition
occurs when a large bit of material is captured in a pocket of the membrance
Term
Photosynthesis
Definition
process that plant cells use to change the energy from sunlight into chemical energy
Term
Cellular Respiration
Definition
process in which cells use oxygen to release energy stored in sugars, such as glucose
Term
cholrorophyll
Definition
a light absorbing pigment or colored substance that traps the energy in sunlight
Term
Exocytosis
Definition
Diffusion of water through a membrane
membrane within the cell encloses the material that needs to be removed
Term
Passive Transport
Definition
the movement of materials that does not use the cell's energy
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